All World War II games are basically "what if" scenarios, but this expansion pack goes to the extreme, introducing more than a dozen experimental and fantastical weapons and vehicles. The result is like a retro 1940s-style look at the future, with jet packs, rocket planes, and superheavy tanks. Although all of these weapons are actually based on real-world experiments, Battlefield 1942: Secret Weapons of World War II has a science-fiction feel.

The original Battlefield 1942 continues to be one of the most popular online shooters. With eight new maps, new period small arms, and new objectives, fans can happily multiply their "what ifs."